Bangkok to Koh Samui by bus and ferry
4 buses leave Bangkok for Koh Samui every day, with fares from ฿1,075 to ฿2,042. The quickest trip takes 8h; the first bus departs at 12:30 from Bangkok Bus Terminal Southern (Sai Tai Mai), the last at 21:00. Operators: Chokeanan and Krung Siam Tour. Prices checked on 2026-10-30.
The ticket includes the boat crossing: you arrive at Koh Samui (Phralan Pier).
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Daily timetable
| Departs | Arrives | Duration | Operator | Class | Fare | |
|---|---|---|---|---|---|---|
| 12:30 | → 20:30 | 8h | Chokeanan | VIP · 24 seats | ฿2,042 | Book |
| 19:00 | → 10:30 | 15h 30m | Krung Siam Tour | VIP · 24 seats | ฿1,316 | Book |
| 19:15 | → 10:45 | 15h 30m | Krung Siam Tour | VIP · 32 seats | ฿1,075 | Book |
| 21:00 | → 11:30 | 14h 30m | Chokeanan | VIP · 32 seats | ฿1,869 | Book |
Where to board in Bangkok
- Bangkok Bus Terminal Southern (Sai Tai Mai) · 4 departures
Bus companies on this route
Questions travellers ask
How long is the bus from Bangkok to Koh Samui?
The fastest bus takes 8h. Most departures take about 15h.
How much is a bus ticket from Bangkok to Koh Samui?
Fares run from ฿1,075 to ฿2,042, set by the bus companies.
When do the first and last buses from Bangkok to Koh Samui leave?
The first bus leaves at 12:30 and the last at 21:00: 4 departures a day.
Where does the bus to Koh Samui leave from in Bangkok?
Most buses leave from Bangkok Bus Terminal Southern (Sai Tai Mai).
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